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  1. #1
    Offshore Aussie's Avatar
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    Pump Alignment revisited

    My coupler is a couple of thou out on the fingers, i will measure the bottom soon as i get room to do it.


  2. #2
    Take the time to smile sirbreaksalot's Avatar
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    Quote Originally Posted by Offshore Aussie View Post
    My coupler is a couple of thou out on the fingers, i will measure the bottom soon as i get room to do it.
    I have made up a plate that bolts and locates into the pump mounting face.

    How ever it is on 1/3 of the alignment area
    center bearing and engine height and position is the biggest concern

    The ONLY true way is to use a set of dummy engine cases with bearing areas modified ( to the same size as center bearing o/d ) so a shaft can slid threw the rear plate .threw the center bearing and threw the front and rear bearings of the dummy engine cases
    ( below is a example of the set up on the pump area )
    imagine this shaft going threw the centre bearing and then locating into the installed engine cases threw the PTO rear and front crank shaft bearings the have a adapter the same size as the shaft you are using
    this is the only true way to 100% get it right

    remember just because the fingers gaps are equal
    this only means the shaft centers are close does not mean they are not out of alignment left to right of each other
    if that makes sense
    if the outter diameter of the couplers ( machined round surface ) are inline with each other you are getting closer

    Remembering that before you start the process the driveshaft needs to be fixed in the center of the pump tunnel and the center bearing needs to be loosened

    I was considering modding a old pump housing and machining a bush to press into the pump housing to get it as straight as possible..........and put the shaft in threw the pump from the back because it would have no cone etc fitted

    Waz
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  3. #3
    Offshore Aussie's Avatar
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    .28mm out from the engine to drive shaft left to right.

  4. #4
    Offshore Aussie's Avatar
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    With the pump out measuring the shaft she's way out. 75mm one side and 80 odd the other, doh. Sirbreaks I love ya shaft!

  5. #5
    Offshore Aussie's Avatar
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    Thanks guys, gee these things can be forgiving. Out quite a bit, every which way. Glad to be made aware of the issue before I try the 15/21.

  6. #6

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    Sirbreaksalot may need a new name soon, Maybe "sirusedtobreakalotbutnowdotshis"I"sandcrosses his his "T"'s "

  7. #7
    Offshore Aussie's Avatar
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  8. #8

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    sir used to break alot but now dots his I's and crosses his T's .

  9. #9
    nicjak's Avatar
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    mmm that pic looks borrowed from another ski lol

    Quote Originally Posted by sirbreaksalot View Post
    I have made up a plate that bolts and locates into the pump mounting face.

    How ever it is on 1/3 of the alignment area
    center bearing and engine height and position is the biggest concern

    The ONLY true way is to use a set of dummy engine cases with bearing areas modified ( to the same size as center bearing o/d ) so a shaft can slid threw the rear plate .threw the center bearing and threw the front and rear bearings of the dummy engine cases
    ( below is a example of the set up on the pump area )
    imagine this shaft going threw the centre bearing and then locating into the installed engine cases threw the PTO rear and front crank shaft bearings the have a adapter the same size as the shaft you are using
    this is the only true way to 100% get it right

    remember just because the fingers gaps are equal
    this only means the shaft centers are close does not mean they are not out of alignment left to right of each other
    if that makes sense
    if the outter diameter of the couplers ( machined round surface ) are inline with each other you are getting closer

    Remembering that before you start the process the driveshaft needs to be fixed in the center of the pump tunnel and the center bearing needs to be loosened

    I was considering modding a old pump housing and machining a bush to press into the pump housing to get it as straight as possible..........and put the shaft in threw the pump from the back because it would have no cone etc fitted

    Waz

  10. #10
    Take the time to smile sirbreaksalot's Avatar
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    Quote Originally Posted by nicjak View Post
    mmm that pic looks borrowed from another ski lol
    Correct...........Mine is not nice and pretty Gold zinc coated............
    but just for you, Before I reinstall my engine in a week or so I will take a new pic of my version just for yu Corey
    ( same same but different )

    Just wanted to get the idea across........

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